package com.lengxf.design;

/**
 * 具体状态类
 * By Lengxf
 */
public class OverdraftState extends AccountState {

    public OverdraftState(AccountState accountState) {
        this.acc = accountState.acc;
    }

    @Override
    public void deposit(double amount) {
        acc.setBalance(acc.getBalance() + amount);
        stateCheck();
    }

    @Override
    public void withdraw(double amount) {
        acc.setBalance(acc.getBalance() - amount);
        stateCheck();
    }

    @Override
    public void computeInterest() {
        System.out.println("计算利息...");
    }

    @Override
    public void stateCheck() {
        if (acc.getBalance() > 0) {
            acc.setState(new NormalState(this));
        } else if (acc.getBalance() == -2000) {
            acc.setState(new RestrictedState(this));
        } else if (acc.getBalance() < -2000) {
            System.out.println("操作受限....");
        }
    }
}
